package day03;

public class IfElseDemo {
    public static void main(String[] args) {
//        满500 打8折 不满打9折
        double price = 300;
        if (price>=500) {
            price *=0.8;
        }else {
            price *=0.9;
        }
        System.out.println("最终价格为"+price);

        //判断成绩是否合法
        int score = -10;
        if (score>=0 && score<=100) {
            System.out.println("成绩合法");
        }else{
            System.out.println("成绩不合法");
        }


    }
}